C:\Old_Data\perlp>perl t9.pl AduwoMxita and AduwoMxirA have common prefix of 8 AduwoMxirA and AduwoMxile have common prefix of 8 AduwoMxile and AduwoMxileVMdi have common prefix of 10 AduwoMxileVMdi and aa have common prefix of 0 aa and abmno have common prefix of 1 abmno and abpqr have common prefix of 2 abpqr and abxyz have common prefix of 2 abxyz and abc have common prefix of 2 abc and abcmno have common prefix of 3 abcmno and abcpqr have common prefix of 3 abcpqr and abcxyz have common prefix of 3